User`s manual

• 24 Tone: Also know as the quarter tone scale, this scale is used for

variety but has no advantage in terms of ratios that better approximate

pure intervals.

• 31 Tone: In addition to intervals that better approximate pure intervals,

this scale also contains good approximations to Indonesian pelog and

slendro scales.

• 53 Tone: Related mathematically to the cycle of fifths, the 53-tone scale

has very pure major and minor thirds, and fifths and fourths.

• Partch: Harry Partch is considered the father of modern microtonality.

This scale was devised by him and used in instrument building and

performances.

• Carlos Alpha: Wendy Carlos performed extensive computer analysis to

devise a number of equal tempered scales with good approximations

for the primary harmonic intervals and their inversions. This scale is

good at approximating the primary intervals including 7/4. This scale

divides the octave into 15.385 steps forming intervals of 78.0 cents.

• Carlos Beta: This scale divides the octave into 18.809 steps forming

intervals of 63.8 cents.

• Carlos Gamma: This scale achieves perfect purity of the primary inter-

vals 3/2, 4/3 and 5/4. This scale divides the octave into 34.188 steps

forming intervals of 35.1 cents.

• Harmonic (chromatic): This twelve-tone scale is created in the partials in

the fifth octave of the harmonic series. The scale degrees that corre-

spond to the classic just intervals are the major second, major third,

perfect fifth and major seventh.

The Edit Scale Display

The Edit Scale Display is

used to create custom

scales or to modify any of

the preset scales. Edits

made using this display

are associated with each

scale. That is, each scale

retains its own edits

independent of the other

scales. For example, if you

select C Major and

Remove or Bypass certain

notes and then change to

C Minor and make other edits, when you return to C Major your previous

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